On Mon, Jan 06, 2020 at 12:23:24PM +0900, Masahiro Yamada wrote: > Since commit 69ea912fda74 ("kbuild: remove unneeded link_multi_deps"), > modules cannot link *.a archives. > > I do not see such a usecase in the upstream code, but multiple people > reported this issue, so it seems to be a desired feature for external > modules. Kernel policy is to not keep around infrastructure not used upstream. And linking archives in the kernel doesn't really make any sense, so this shouldn't go in in any form.